Envelop-fastener.



J. CROOKS.

ENVELOP FASTENER. APPLICATION FILED JAN.23,1908.

910,912. Patented Jan.26,1909.

Jo/m 6700A? PATENT OFFIC JOHN CROOKS, OF PHILADELPHIA, PENNSYLVANIA.

ENVELQB-FASTENE'B.

no. 910,91e.

Specification-of Letters Patent.

Patented Jan. 2c, 1909.

Application flledJanuaryt28, 1908. Serial No. 412,240.

To all whom it may concern:

Be it known that 1, JOHN (hours, a subject of the King of, Great Britain, residing; at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in En:- velop-Fasteners, of which the. specification wasfiledJanuary 23, 1908.

This invention relates: to an envelop fastener, the object being to rovide a fastener which can be readily attached toan envelop soas to avoid the use of gum on the flap.

Another object of my invention isto provide a fastener which can be readily secured in position and one which ,will securelylock the flap to the body of the envelop so that it will be impossible to open the same without breaking the flap.

Another object of my invention is to provide an envelop fastener which is exceedingly simple and cheap in construction and one which is very neat in appearance.

My invention consists of a pair of fastening members,'one of which is secured to the body of the envelop and is provided with a socket and the other to the flap of the envelop and is provided with a resilient head adapted to fit in said socket.

These objects are obtained by the arrange: ment and construction of parts hereinafter fully shown and described in the accompanyin drawings, in which igure 1, is a back view of an envelop showing my improved fastener in a close position. Fig. 2, is a section through the fastener and envelop. Fig. 3, is a to plan view of the socket member carried y the body of the envelop, and, Fig. 4, is a top plan view of a disk, from which the resilient memher is formed. I

In the drawings, A indicates a disk formed of some very flexible metal, such as tin, having a circular crimped portion A, on one side forming a socket, provided with a central opening, the edge of which is bent down- Wardly, as shown at A forming an annular depending flange, for the purpose hereinafter fully described.

The disk is provided with a plurality of spurs A around its edge adapted to extend up through the body of the'envelop G, when arranged in the same and be bent down on the body so as to securely lock the disk in position. i I

' An opening is formed in the body of the envelop registering with the opening the socket throu h which is adapted to extend the resilient ead which is formed of spurs Bi, punched out of a. disk B, which is arranged on the flap of the envelop over an opening found in the same through which the head extends. The spurs of the head are provided with hooked ends B adapted to engage the annular flange of the socket and securely lock the two members together.

The disk B, is provided with an annular flange B which corresponds to the side of the crimped portion so that when pressed down in position the material of the envelop will be clamped between the same.

The spurs B, 'of the disk B, are formed by cutting converging slots in the disk and bending the spurs downwardly in the form of a circle and then bending the points of the From the foregoing description it will beseen that I have provided an envelop fastener which is very simple and cheap in construction and one which can be readily applied to any of the well known forms of envelops now in use without changing the construction of the same in any way.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. An envelop fastener comprising a socket member formed with a raised central portion having a central opening and an annular depending flange therearound; in combination with a head member comprising a body portion formed with a series of resilient spurs cut out of the body portion and located radially around the center of said head member adapted to be forced into the opening of the socket member, said spurs havinglfree outwardl angled ends to engage with t having a raised central portion rovided with a central opening and an annu ar depending flange therearound, and another portion of said envelop having attached thereto a disk formed with a series of resilient s urs out out of said disk and located aroun the center thereof, adapted to be forced into the open- I ing of the socket, said spurs having free outwardly an led ends adapted to engage with the depending flange of the socket.

3. An envelo having an opening in its rear wall, a sec et disk arranged within the envelop havin a circular apertured raised portion exten ing through the opening in said envelop, having a depending flange surrounding said aperture, the body of said socket disk being rovided with spurs for securing it to the ody of the envelop, the flap of said envelop bein provided with a disk havin a plurality o spurs cut out of the materia thereof and arranged in a circle, said spurs being adapted to extend through the opening of the socket disk and havin hooked outwardly extending ends adapted to engage the depending flange of the said and a disk secured to the flap of said envelop provided With converging slots which are bent downwardly to form a circle of spurs, said spurs being provided with hooked ends adapted to engage the edge of the flange of the socket, for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN CROOKS.

Witnesses:

M. O. LYDDANE, REA P. WRIGHT. 

